noun
adj
verb
adv

Textual thesaurus for "dumbfounded"

(adj) stupefied, thunderstruck, dumbstricken, dumbstruck, dumfounded, flabbergasted

as if struck dumb with astonishment and surprise

a circle of policement stood dumbfounded by her denial of having seen the accident; the flabbergasted aldermen were speechless; was thunderstruck by the news of his promotion